Sign In | Join Free | My benadorassociates.com
benadorassociates.com
Products
Search by Category
Home > Fuses >

30 Amp Fast Acting 437 Cross SM 125V Thin Film Surface Mount Fuses 1206

Categories Surface Mount Fuses
Brand Name: AMPFORT
Model Number: R12.000
Certification: UL,REACH
Place of Origin: Dongguan,Guangdong,China
MOQ: 3000 pcs
Price: Negotiable
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 100,000,000 Pieces Per Month
Delivery Time: 7-10 Workdays
Packaging Details: Tape,3Kpcs per reel
Product Name: 437 Cross SMT 1206 Fast Blow Thin Film SMD Fuse
Fuse Type: 1206 (3216 Metric)
Breaking Capacity: 100A@72V 63V 32VDC 300A@24VDC
Ampere range: 0.25-30A
Rated Voltage: 125V 72V 63V 32V
Operating Temperature: -55°C to 125°C
Body: Ceramic
Termination: Silver over-plated with tin
Element: Alloy(Ag,Cu,Zn)
Cover coat: glass
Size: 3.1x1.6mm (1206)
Speed: Fast acting
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
Submit Buying Request
  • Product Details
  • Company Profile

30 Amp Fast Acting 437 Cross SM 125V Thin Film Surface Mount Fuses 1206


437 Cross SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


Description Of The SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


1206 Fast blow smd fuse designed for overcurrent protection on PCB where will bring high

working ambient temperature and high inrush current withstand capability with high I²t values typical.

A precise melting time offers ultimate protection for sensitive electronic components, while a reflow

soldering process allows surface mount fuses to be directly attached to printed circuit boards.

The SMD fuse is compatible with a wide range of circuit designs, making this fuse the best choice

for all types of consumer electronic applications.


Features Of The SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


• Operating Temperature from -55ºC to +125ºC
• 100% Lead-free, HalogenFree and RoHS compliant
• Suitable for both leaded and lead-free reflow / wave soldering
• UL Recognized to UL/cUL

• Wide current range 0.25A-30A

• High voltage up to 125V

• High inrush current withstand capability

• High I²t values

• Fast blow


Fuse Cutoff Time Standard Of The SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


Rated Current% of Amp Rating
Opening Time
250mA~30A100%4hours, min
1A~3A200%1.0s - 60 s
1A~5A250%5.0s max
1A~5A300%0.1s - 3.0 s
250mA~750mA350%5.0s max
6A~30A350%5.0s max
250mA~30A1000%0.2ms - 20.0 ms

Application Of The SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


• LCD Displays

• Servers

• Printers

• Scanners

• Data Modems

• Power supplies

• LED driver

• UPS

• EMS

• BMS


Specification Of The SMT 1206 Fast Blow Thin Film SMD Fuse 125V 72V 63V 32V 0.25A-30A


Specification

Part

No.

Rated

Voltage

DC

Rated Current

(A)

Breaking

Capacity 1

Typical

Cold. Resistance (mOhms) 2

Typical Voltage Drop (mV)

Typical Pre-Arcing

I2t

(A2Sec) 3DC

Aplha Marking
72V63V32V24V
R12.000 0.2572V63V32V24V250mA100A100A100A300A360814070.0004.25
R12.000 0.375375mA18827180.0008E
R12.000 0.5500mA10286500.00220.5
R12.000 0.75750mA6016160.0057.75
R12.000 11A4905100.10H
R12.000 1.251.25A1651840.021
R12.000 1.51.5A2403670.15K
R12.000 22A1443160.41N
R12.000 2.52.5A832400.65O
R12.000 33A531871.39P
R12.000 3.53.5A401801.68R
R12.000 44A351731.73S
R12.000 4.5/4.5A-271642.62X
R12.000 55A221412.89T
R12.000 6.56.5A161403.46.5
R12.000 77A121405.687
R12.000 10/10A-4.4592.1610
R12.000 1212A3.8677.1112
R12.000 1515A2.96623.8915
R12.000 2020A1.66047.1720
R12.000 2525A1.4573225
R12.000 3030A1684330

Does a fuse resistor work the same as a fuse?


A resistor is available for a certain load. If the current flowing through the resistor goes beyond the limit, it will be burned and the circuit will be open. At this point, a resistor is similar to a fuse, i.e., the current can be interrupted upon overcurrent. This seems like a fuse function. In this way, some manufacturers change the fuse in its original design to cheap fuse resistors to keep cost down, presenting customers with superficial security.

However, is a fuse resistor able to substitute a fuse to have the same function? The answer is obviously no.

As we know, a good fuse must possess three essential functions: protection, load bearing and safety, while a fuse resistor may not be able to work well in all three aspects.

The protection function covers overload protection and short circuit protection. Specifically, a fuse must operate within the specified time when an unexpected overcurrent, even an extremely short overcurrent, occurs in the circuit, so as to protect the circuit and parts. A fuse resistor may not be as accurate as the fuse in terms of technical parameters like starting time and operation duration, and thus cannot ensure overcurrent protection. It only works to some extent for short current.

The load bearing function of a fuse is ensured by the I2t value, which enables a fuse to withstand pulse shocks of a certain energy from switching operations. We should calculate and evaluate this value before fuse selection. Nevertheless, a fuse resistor has no similar technical indexes, so it may be blown by a pulse if the value is small or fail to protect the circuit if it is large.

As for safety, a fuse can be assured through rated voltage, interrupting capacity and other indexes, especially safety compliance certification by an authorized third party. A fuse resistor is not a safety component, so it does not need certification. Its safety is therefore questionable. Furthermore, it has insufficient protection, and it's hard to ensure no hazards occur during the breaking process.

In conclusion, a fuse resistor may blow upon overcurrent, but it cannot work the same as a fuse. In most applications, it will not be appropriate to replace a fuse with a fuse resistor to cut cost.
Buy 30 Amp Fast Acting 437 Cross SM 125V Thin Film Surface Mount Fuses 1206 at wholesale prices
Send your message to this supplier
 
*From:
*To: Dongguan Ampfort Electronics Co., Ltd.
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0